| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 2 |  | Science Vs | Spotify Studios | |
| 3 | 29 | E | Easy Physics | Easy Physics | |
| 3 | — |  | Unexplainable | Vox | |
| 3 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 7 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 1 |  | More or Less | BBC Radio 4 | |
| 9 | 2 |  | Radiolab | WNYC Studios | |
| 10 | 1 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 12 | — |  | Lost Women of Science | Lost Women of Science | |
| 13 | 6 |  | The Psychology Podcast | iHeartPodcasts | |
| 14 | 15 |  | Ancient Aliens | PodcastOne | |
| 14 | — |  | Alive Again | iHeartPodcasts | |
| 15 | 2 |  | Blurry Creatures | Blurry Creatures | |
| 16 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 16 | 7 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 16 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 17 | 4 |  | Science Weekly | The Guardian | |
| 18 | 18 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 19 | 77 |  | BBC Inside Science | BBC Radio 4 | |
| 20 | 56 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 20 | 1 |  | All In The Mind | ABC | |
| 21 | 1 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 22 | 5 | T | The Naked Scientists Podcast | The Naked Scientists | |
| 22 | 5 |  | The Orthobullets Podcast | Orthobullets | |
| 22 | 1 |  | The Science of Everything Podcast | James Fodor | |
| 22 | 7 | S | Students of Surgery | Martin Brand | |
| 24 | 33 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 24 | 5 |  | Babbage from The Economist | The Economist | |
| 25 | 2 | G | Green Noise | CapeNature | |
| 26 | 14 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 26 | 10 |  | Discovery | BBC World Service | |
| 28 | 21 |  | From First Principles | Krishna Choudhary and Lester Nare | |
| 28 | 16 |  | Curiosity Weekly | Discovery | |
| 29 | 11 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 30 | 23 |  | Astrum Space | Astrum | |
| 30 | 11 |  | Short Wave | NPR | |
| 31 | — |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 32 | 2 | I | International Law | Yale Law School | |
| 33 | 16 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 33 | 68 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 34 | 6 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 35 | 75 |  | Skeptoid | Brian Dunning | |
| 35 | 1 | B | Boring History for Sleep | Velvet | |
| 36 | 12 |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 37 | 94 |  | That UFO Podcast | That UFO Podcast | |
| 37 | 17 |  | Ground Truths | Eric Topol | |
| 37 | 16 |  | Regenerative Agriculture Podcast | John Kempf | |
| 37 | — |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 38 | 18 |  | The Michael Shermer Show | Michael Shermer | |
| 39 | 19 |  | BrainStuff | iHeartPodcasts | |
| 40 | 13 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 41 | 23 |  | Science Friday | Science Friday and WNYC Studios | |
| 41 | 5 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 42 | 22 |  | Universe Today Podcast | Fraser Cain | |
| 43 | 29 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 43 | 14 |  | This Week in Space (Audio) | TWiT | |
| 44 | 151 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 44 | 11 |  | The Brain Health Revolution Podcast | The Brain Docs | |
| 45 | 29 |  | Curious Cases | BBC Radio 4 | |
| 46 | — | B | Best Horse Practices Podcast | Maddy Butcher | |
| 47 | 15 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 48 | 23 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 49 | 21 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 51 | 15 | L | Let's Talk Micro | Luis Plaza | |
| 52 | 15 | L | Learning from Nature: The Biomimicry Podcast with Lily Urmann | Lily Urmann | |
| 53 | 15 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 54 | 108 |  | Science In Action | BBC World Service | |
| 55 | 26 |  | Robinson's Podcast | Robinson Erhardt | |
| 55 | — |  | Emergency Medicine Board Bombs | EM Board Bombs | |
| 55 | 22 |  | Science Quickly | Scientific American | |
| 57 | 14 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 58 | 25 |  | Unbiased Science | @unbiasedscipod | |
| 58 | 5 |  | You Are Not So Smart | You Are Not So Smart | |
| 59 | 16 |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 60 | 16 | M | Medscape InDiscussion: Systemic Lupus Erythematosus | Medscape | |
| 61 | 2 | P | Psychology in 10 Minutes | David B. Feldman - psychology | social science | politics | mental health | |
| 62 | 2 | T | The Engineering Passion Express | Brandon Donnelly | |
| 63 | 14 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 65 | 30 | G | Gossip Gills | Aquaculture Stewardship Council | |
| 68 | 23 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 69 | 21 |  | The Climate Question | BBC World Service | |
| 70 | 38 |  | Nature Podcast | Springer Nature Limited | |
| 71 | 86 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 74 | 67 |  | Unexpected Elements | BBC World Service | |
| 74 | 31 | T | The Power Shift: Decolonising Development | Kate Bird | |
| 74 | 39 |  | How We're Wired | The Bertarelli Foundation | |
| 75 | 21 |  | CrowdScience | BBC World Service | |
| 77 | 40 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 78 | 38 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 79 | 18 |  | MinuteEarth | Minute Earth | |
| 80 | 12 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 81 | 100 |  | Science Magazine Podcast | Science Magazine | |
| 83 | 75 |  | Total Disclosure Podcast | Tyler Roberts | |
| 83 | 44 |  | Speaking of Psychology | American Psychological Association | |
| 83 | 3 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
